@article{:/content/10.2807/esm.04.04.00063-es, author = "Falcão, J M and Nogueira, P J and MatiasDias, C and Pimenta, Z. P.", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.04.04.00063-es", doi = "https://doi.org/" }